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Finding the Fourth Proportional to 71,263.94, 98,342.82 and 39,432.83

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Solution

The fourth proportional to 71,263.94, 98,342.82 and 39,432.83 is: 54,416.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,263.94 : 98,342.82 = 39,432.83 : x
  2. Step 2: Convert to fraction form
    71,263.94/98,342.82 = 39,432.83/x
  3. Step 3: Cross multiply
    71,263.94x = 98,342.82 × 39,432.83
  4. Step 4: Simplify right side
    71,263.94x = 3,877,935,211.07
  5. Step 5: Solve for x
    x = 3,877,935,211.07/71,263.94
  6. Step 6: Final answer
    x = 54,416.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.